Nope, but check out their Houzz profile: Porter Davis Looks good!

garages should also be considered as multi purpose spaces for wet weather kids activities and man caves

if you definitely know that the house is beyond saving why wait? starting now would allow for the demolition to be planned in a more organised way so that you can potentially salvage anything that might useful either in the new house or for recycling eg any windows, doors, water heaters etc that could be offered for sale or bricks that could be reused on site for feature walls or garden paving... on our last big reno we made several hundred dollars from salvaged electrical wiring, thousands from the sale of building materials and saved thousand in labour by cleaning some of the site ourselves and taking rubbish to the tip...not a fun job but cheaper than joining an exercise class ...luckily there was an old shed on site that we kept for builders' storage and we salvaged plants, had trees and shrubs trimmed and fences repaired before major new work began and all the extra time on site also gave us more time to feel the local climate, plan the new landscaping and meet the neighbours

Hi Patrick, i live in Sydney too and was looking at KDRB options a few years ago. It was going to cost more than $400k. I think by the time you add in demo costs, house build, upgrade, council and rental costs for a year will be closer to $600k. Sydney building costs seem to be to be much higher than other areas of Australia judging by the posts here. I think the project builders should be able to give you a ballpark cost if you can select a house plan that would work, while they will probably have a service that will custom design something that will fit your block it will probably defeat the purpose of using a bulk builder. They are no doubt the cheapest option though. Good luck...